Once you post your motherboard's Make & Model maybe we can see if it has a manual that can help in configuring the Motherboard also by your post you seemed to have Linux OS installed. What version are your running? Also is this a Server?

You can always open an AMD EMAIL SUPPORT TICKET and a AMD Specialist in embedded Hardware will be able to assist you. : Email Form

Once you post your motherboard's Make & Model maybe we can see if it has a manual that can help in configuring the Motherboard also by your post you seemed to have Linux OS installed. What version are your running? Also is this a Server?

You can always open an AMD EMAIL SUPPORT TICKET and a AMD Specialist in embedded Hardware will be able to assist you. : Email Form